At the dacort site you can download Undine Lite which is a free mermaid but is based on natalia 2,this way you can have a preview of the head morphs. I use Natalia a lot, not because she is high resolution or for the fantasy morphs but just because she looks so different from all the other ladys. There is a free bikini and a free dress for her at dacort too. I have made some free textures for her and there are other 2-3 free too if you search. I don't have Nadya so I can't tell you about her...